The witness said that around 10 minutes after the crash, Food Network star Bobby Flay arrived and talked to Jones, telling her to leave the scene.

Jones, who plays Betty Draper in the hit TV show, had spent the evening with Flay and a group of friends at the London West Hollywood, where she watched the LA Lakers lose to the Boston Celtics in the latest game of the NBA Finals.

Flay told website TMZ he had only met Jones that night, but responded to her call for help.

However, Jones' representative denied the actress fled the scene.

The spokesperson said: 'While being followed by paparazzi, Ms Jones struck two parked cars.

'There was no alcohol involved and there is no investigation pending.

'She did not flee the scene; she left her licence with a witness and walked to her nearby home to call the police.'

A Los Angeles Police Department source said Jones called police on reaching home and on being told they already were at the scene walked back.

Police said there was no indication Jones had been drinking or taking drugs and she was not breathalysed. They also confirmed that three cars, and not two as claimed by Jones's spokesperson, were hit.

A local resident who witnessed the crash said police told her Jones could easily have had a drink at home following the accident, and so there was no point giving her a field sobriety test.

Jones was not cited or arrested, although her damaged car was impounded.

The previous evening Jones had been at an event in West Hollywood and was seen returning home in the same outfit the next morning, an event which sparked the interest of the paparazzi.

There had been reports in recent weeks that Jones was dating Oscar-winner Adrien Brody, although both have denied this.

Trail of destruction: Damage allegedly caused by Jones in the accident